Plans are in motion to make an Arctic half marathon an annual event in the Royal Marine calendar after commandos braved the challenge on a winter deployment for the first time.
Sub-zero temperatures in northern Norway did not deter more than 50 members of 3 Commando Brigade who are in the country on the Cold Weather Warfare Course.
The training sees the marines develop their survival, navigation and warfighting skills in extreme conditions.
Earlier this week, it was announced the commandos had completed their first phase of the course which focused on survival and included ice shelter-building and a brutal cold water shock drill.
The marines are now entering the movement phase of training.
The 13.1-mile run was done on treacherously slippery ground and in temperatures as low as -17°C.
Surgeon Lieutenant Ben Smith of 45 Commando, one of several units forming 3 Commando Brigade, finished in first place.
He said: "The conditions were challenging, but the pressure of not knowing what position I was in definitely kept me working hard right to the end," he said, having finished in one hour and 24 minutes."
Medics watched on as runners set off at 10-second intervals in line with Norway's COVID regulations, each wrapped up warm and carrying a rucksack with spare clothing.
Race organiser Corporal Scott Constable added: "Being deployed 200 miles inside the Arctic Circle is a challenge for everyone, so it was fantastic to see so many turn out today to push themselves even further."
Cover image: Royal Navy.